The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Jan. 19, 2011
Yechiel Yochai, Moshav Aviel, IL;
Leo Corry, Ramat Gan, IL;
Haim Kopylovitz, Herzliya, IL;
Infinidat Ltd., Herzliya, IL;
Abstract
There are provides an allocation module and a method of allocating a logical disk to a next member of a given RAID group. The method comprises: identifying one or more physical disks comprising at least one logical disk with already allocated member of said given RAID group, thus giving rise to allocated physical disks; identifying one or more pairs constituted by at least one allocated physical disk with non-allocated physical disks, said pairs having minimal number of RAID groups with members allocated to both physical disks in the pair, thus giving rise to a first group of pairs with minimal contention value; and selecting among the first group of pairs with minimal contention value one or more non-allocated physical disks as candidate physical disks for allocating said next member MEMof said given RAID group, wherein 0<i<N+1. The method further comprises identifying among one or more disk units corresponding to one or more selected candidate physical disks at least one disk unit matching a reliability criterion; identifying at least one candidate physical disk corresponding to the at least one identified disk unit; and allocating said next member of said given RAID group to a free logical disk in the identified at least one candidate physical disk.